Erratum for the paper
L. Cagliero and T.H. Koornwinder, Explicit matrix inverses for lower
triangular matrices with entries involving Jacobi polynomials,
J. Approx. Theory 193 (2015), 20-38; arXiv:1301.4887v5 [math.CA].
In the line after formula (8.2) replace "Askey and Wilson [2, (6.5)]"
by "Askey and Wilson [2, (6.2)]".